Teasel gig



APatented Nov. 21, 1944 y o o UNITE-o STATES PATENT OFFICE y VATEASEI..(nok s Wilfred N. Hadlegsprmgnela, vt., assigner to f Parks and WoolsonMachine Company, Springs field, Vt., a corporation i Application June 8,1943, Serial No. 490;()30

l 6 Claims.

f This invention relates to teasel gigs, used'for raisingthe nap on woolfabrics inthe course of the .finishing processes.

In the common rformjof planetary or rolling teaselv gig Vemployed aty'the' present time, the teaselsare drilled aXiallyjand mountedv end toend in pairs held fast on small spindles rotatably mounted in bearingsin small stands Xed y to the continuous and permanent peripheralsurfaceof the gig cylinders;

' der sin each gig, yeach havingimore than 1500 burrs, it is a lengthytask to renew the teasels,

and in addition to the loss of hours of machine ltime involved in thisrenewal, each spindley must be removed from thel cylinders by hand andreplaced after changing the burrs, the work being done right at themachine, and'since the'cyl-l indersare surrounded by other cooperatingrolls,

brushes, cloth guides, and other machine parts rendering themaccessible. only in limited loca-` tions, it is an unpleasantlylaboriousand' back-l breaking job. It is this difliculty in keeping thenappingsurfaces in serviceable condition which has been largelyresponsible for resort to the use of napping machines-l employing wirey'card`v clothing in place of the older teasel gig, in spite oftheadmitted fact that theteaselgigv produces a far better and moredesirable finish on the'fab- It is the main object of the inventiontomake the job of renewing the teasels on a rolling teasel gig muchshorter and easier, and to this end the invention method and meansconsist in making the peripheral surfaces of the gig cylinders ofremovable slats on which the small stands holding the burr spindles arepermanently mounted, whereby when the vburrs become worn to an eX- tentrequiring renewal, the slat or slats carrying such burrs can be quicklyand easily removed from the cylinder and replaced by other slats inwhich fresh teasels have already been installed 1n working relation. Inthis way, not only is the time required to renew the napping surface oneach cylinder greatly reduced, with conse-y quent large saving ofmachine time,but the ease and convenience of effecting the renewal isvastly increased, since the '70'v to 80 new burrs onv each slat areinstalled on the machine at once as a cess and facilityv and comfort.

Fig. ,1 is a view in perspectiveof a portion of one of the cylinders ofa teaselfgig, showing the removable slats of the invention and theInanner 'of securing them to the cylinder, the burrs, spindles andstands therefor beingvomitted for Clarity' l u l Fig. 2 is a face viewofvone 'of thev novel slats,

showing the burrs mounted on spindles rotating in stands fixed on theslat. '3, is a section on line 3-3 of Fig. 1.

Fig. 4 is a section on line '4 4' of Fig. 1;

In accordance with the novel methodof the invention, the improved gigcylinder, instead of beingformedl as heretofore with a continuouscylindrical surface of wood or metal permanently attached at andintermediate its ends to heads or spiders, and with the rspindle standspermanentlyraixed to this cylindrical surface, is composed of aplurality of spiders I fixed at spaced intervals on a shaft 3v journaledin suitable .bear- -ingsin a machine frame (not shown), onl whichspiders are fastened with capacity for easy'removal a plurality of,slats 5,p'referably of sheet metal, extending for the full'length ofthe working surface ofthe cylinder parallel to its axis and disposedaround the lentire periphery in closely spaced relation toeachother. .Asshown,

` each slat is provided at each en d witha notch 'I to receive the shankof a screw 9 threaded into the face of the end spiders I forming thecylinder, these screws xing the ends of the slats tov their properspider I, while yturn buttons II are 'pivotally mounted .on screws I3threaded into the yintermediate spiders I5 at the intervals betweenadjacent slats 5 so that each may be turned into a position inwhich itsend portions overlap the edges of the adjacent slats to hold theseportions of the slats `closely to the faces of spiders I5. In certaininstances,y turn buttons II are used also at the ends of the slats, inplace of the screws 9.

The usual small stands I1 are fastened by bolts I9 in a double rowlengthwise throughout the full extent of the slats 5, eachA stand havinga bearing 2l in which rotates the butt end of one spindle 23 and asecond bearing 25 in which the tip end of an adjacent spindle 23 isrotatably mounted. The usual clip 21 is also provided to support thebase end of one of the pair f teasel burrs 29 fixed on each spindle. Itis noted that each slat is bent slightly along its longitudinal medianline, so that the two halves thereof lie in obliquely related planesintersecting along such median line, giving the slat a flat V-section.Thus, the stands I1 of each of the two rows extending lengthwise of aslat are provided with a-flat surface for their attachment while eachslat is made Wide enough to carry two rows of lll stands without givingthe completed cylinder any significant amount of attened areas ordeparture from cylindrical periphery to impair its efficiency in bearingagainst the fabric.

In renewing the burrs on the improved gig cylinder, the screw 9 at oneend onlyv of each slat 5 to be removed is taken out, and turn buttons Ilretaining such slat are turned a quarter-turn, and each sl-at is thenmoved endwse slightly to free its other end from the head of screw 9 atsuch end, whereupon the entire slat with its worn burrs is removed as aunit. Thereupon another slat having new burrs allinstalled inworkingrelation on their spindles 23 in 'stands I1 `is put into place with oneof its notches 'l under the head of one screw 9, the' other screw 9 isreplaced in the notch at its opposite end, and turn buttons H turnedback into their holding position of Fig. 1. The machine isthen inreadiness to resume operation. The slat having the worn burrs, thusremoved, is then relled with new'burrsy at any convenient working place,and held in readiness for instant installation when needed. l

In applying the invention to existing teasel gigs in which the cylindershave continuous cylindrical vsurfaces of wood or metal permanentlyattached to the supporting spiders, the stands I1 are simply removedfrom the xed surface of the cylinder and mounted on slats 5 attached tothe cylindrical surface with capacity fol-'quick and easy removal ina'manner exactly analogous to that already described, as by means ofthe-screws 9 and turn buttons ll.

While Ifhave illustrated and described a certain form in Which theinvention may be embodied, I am aware that many modifications may bemade therein by any person skilled in the art, Without departing fromthe scope of the invention as expressedin the claims. Therefore, I donot wish to be limited to the particular forms shown, or to the detailsof construction thereof, but what I do claim ist l. A cylinder for ateasel gig having in combination a shaft, supporting surfaces eachmounted concentrically upon such shaft, slats, means for mounting teaselburrs in Working relation upon such slats andfin spaced relation to theslats and with capacity for rotation about the axis of such burrs, andmeans attaching the slats to the supporting surfaces in parallelrelation to the shaft with provision for quick detach.. ment therefromwhile retaining the teasel burrs mounted in working relation upon theslats.

2. A cylinder for a teasel burr gig comprising incombination aperipheral surface composed of a plurality of slats, a shaft, supportingmeans on such shaft holding the slats in parallel relation to such shaftand` in equidistant spaced relation therefrom, spindles and bearings onthe slats rotatably supporting teasel burrs, and quickly releasablefastening means securing the slats to the Slat-supporting means withcapacity for easy removal of the slats for renewal of the teasel burrs.

3. A cylinder for a teasel gig having in combination a shaft, spidersxed on such shaft, slats on such spiders in parallel relation to suchshaft, stands on such slats, spindles rotatably mounted in such stands,and teasel burrs mounted on such spindles, the slats being -quickly andindividually removable from the spiders for renewal of the teasel burrs.

4. A cylinder for a teasel gig having in combination a shaft, spidersxed on such shaft, teasel burrs, stands and spindles rotatablysupporting the teasel burrs, and a plurality of elements mounted on thespiders and forming the periphery of the cylinder and on which thestands are fixed, such elements being quickly detachable and removablefrom the spiders and carrying with them upon removal the stands xedthereon together with the spindles and teasel burrs supported thereby.

5'. A slat Afor a teasel gig cylinder comprising in combination a metalstrip bent into flat V-sec- `tion, stands fixed on the outer surface ofthe strip at each side of the bend, spindles rotatably mounted in `suchstands, and teasel burrs mounted on the spindles.

6. In a teasel gig, in combination, a cylinder lcomprising a shaft,spiders fixed thereon, slats having notches at their ends, stands on theslats, spindles rotatably mounted in the stands, teasel burrsv on thespindles, and fastening means on the spiders engaging in the notches onthe slats :and holding the latter in working position with capacity forquick and easy release to permit removaland replacement of the slats.

WILFRED N. HADLEY.

